| Products > Test Equipment |
| Upgrading the HP/Agilent 8714C from green CRT to color LCD |
| << < (5/10) > >> |
| AF6LJ:
This is very Cool, looking forward to more pictures and info. :-+ :-+ |
| TheSteve:
Yes, more info would be great. A cheaper and easier mod is anyways welcomed. It would be nice to ditch the VGA interface. |
| andy2000:
Here are some more pictures of the project. I'll post a list of part numbers for the ICs soon. They were standard parts from Mouser. I already had miscellaneous parts like caps and resistors on hand. U1025 is used for brightness control, but I didn't install it since I assume the firmware lacks support for that feature. I simply grounded the unused LSBs of the LCD. I mounted the LCD to a piece of Plexiglas which I attached to the CRT brackets on standoffs. I used a router table to shave off the CRT bezel. |
| andy2000:
Here's a list of the part number I ordered. U1008 -- LX8385B-33CDD -- 3.3v regulator Q1001 -- FDS6679 -- P channel MOSFET R1025 -- SOMC160333R0GEA -- resistor array, 33 ohms R1026 -- SOMC160333R0GEA -- resistor array, 33 ohms U1012 -- SN74LVT125D U1009 -- SN74LS123DR U1010 -- 74LVT574WMX U1011 -- 74LVT574WMX J1020 -- A3E-50PA-2DSA(71) |
| KrudyZ:
I recently bought a nice copy of the HP 8714ET and have just received my LCD from Shenzhen. https://www.ebay.com/itm/VGA-LCD-Controller-Board-RT2270C-With-8-4-AA084VC03-640x480-LCD-Screen/181965840286?hash=item2a5e025f9e:g:1oUAAOSwbtVZV2uh I paid $90 shipped. It arrived within 10 days and was well packaged, so I had a good experience with this seller. I chose to go the analog VGA route as it seems to require fewer modifications to the analyzer. Here is a picture of the LCD kit plugged into the external VGA port and powered from a 12 V lab supply (it draws about 1 A). This is using two fluorescent backlights. I'm still waiting on the LED strips to come in to update the backlight and complete the mod. Rudy |
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